Disintegrator attachment for elevator-buckets.



C. C. JACOBS.

DISINTEGRATOR ATTACHMENT FORELEVATOR BUCKETS.

APPLICATION FILED DEC-1,1911. 1,156,291. T Patented 0015.12, 1915.

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C. C. JACOBS.

D|S|NTEGRATOR`ATTACHMENT FOR ELEVATOR BUCKETS. 4

APPLICATION FILED'DEC. l, 1911.

1,156,291. I :Patented 061.12; 1915.

3 SHEETS-SHEET 2.

C. CJACOBS.

DISINTEGRATOR ATTACHMENT FOR ELEVATOR BUCKETS.

APPLICATION FILED Dic. I, 1911.

1,156,291. Patented! 001;. 12, I1915.

` 3 SHEETS-SHEET 3.

JJM i COLUMBIA PLANQGRAPH CCI., WASHINGTON n c UNITED STATES PATENT onnron.

CHARLES C. JACOBS, or AMBoY, ILLINOIS, ASSIGNCR To FREDERICK C. AUSTIN, or

CI-IICAGO, ILLINOIS.

DISINTEGRATOR ATTACHMENT FOR ELEVATOR-BUCKETS.

Specification of Letters Patent.

Patented oct. 12, 1915.

Application filed December 1, 1911. Serial No. 663,205.

To @ZZ whom'zzf may concern.'

Be it known that I, CHARLES C. JACOBS, a citizen of the United States of America, and resident of Amboy, Lee county, Illinois, have invented a certain new and useful Improvement in `Disintegrator Attachments for .Elevator-Buckets, of which the following is a specification.

My invention relates to excavators in general, but more particularly to excavators having buckets, and especially to excavators provided with a pair of buckets arranged back to back and movable back and forth on a runway. In excavators of this general class, one difficulty very frequently encountered is the inability of the bucket to cut through all kinds of ground. For example, shale and other similar formations are often encountered, and at such times the buckets are either very liable to break, or else practically incapable of cutting through the ground. This, of course, delays the work and reduces the efliciency of an excavator of this type or character. v y

The object of my invention is, therefore, to provide an arrangement of cutting devices for disintegrating or breaking up the ground preparatory to the samebeing taken up or collected by the bucket or buckets by which the dirt is gradually removed from the excavation and deposited on the spoil bank.

It is also an object to provide a gang of cutting ordisintegrating devices for -this purpose which will not be liable to break under severe strain. f Y

A further object is to provide certain details and specic features of cnstruction tending to increase the general efliciency of an arrangement of this particular character.

To the foregoing and otheruseful ends, my invention consists in matters hereinafter more fully set forth and claimed.

In the accompanying drawings-Figure l is a side elevation of a bucket and disintegrator embodying the principles of my invention, showing a portion of the runway upon which the same travel lback and forth. Fig. 2 isa plan of the parts shown in Fig. l. Fig. 3 is a vertical section online 3 3 in Fig. 1. Fig. l is a Side elevation of two buckets connected together in a manner embodying the principles of my'invention.

As thus illustrated, my invention cornprises a runway A. of any suitable, known or approved character.

for determining the cross sectional contour.v

of thevditcln` and 'upon which two buckets disposed back to back are arranged to travel back and forth. i 1n one direction one bucket is filled and dischargesits load when it reaches dumping position. lVhen the buckets travel in the reverse direction, the other bucket is filled and discharges fits Vload when it reaches dumping'positionat the other side ofthe ditch. As an excavator of this general character is well known and understood, further description thereof will not be necessary.

The'bucket -B may be of any' suitable, known or approved form, and is one of the above-mentioned buckets, it being understood that the two buckets areexactly alike. This bucket has an open forward end'provided at its lower edge with a lip or cutting edge Z), and the rear end 0r bottom of the bucket is rounded o-r curved in the manner shown. The sides of the top of the bucket are provided with longitudinally extending and parallel rigid bars b2, a pair of track wheels b3 being mounted on each bar. These track wheels b3 are adapted to travelin the channels of the runway A, whereby the bucket is adapted to travel back and forth and is held to its work. nect this bucket with the other bucket, the two buckets being arranged back to back, and the said links being pivotally connected at each end thereof. if desired, several of these links C arranged in pairs, as shown more clearly in Figs. 2 and3, can be employed as the medium of connection betweenv the two buckets. y

As previously stated, it often occurs that, in the use of an excavator ofl this character, the bucket encounters shale or hard soil or other substances through which it is unable to cut its way in a satisfactory manner, and sometimes ground of this kind is of Such character that the bucket is totally, incapable of operating therein, or at least cannot ldo so without serious danger l ofv breakage. With a view, therefore, to disintegrating or pulverizing or breaking vup the ground preparatory to the operation of the bucket, and for the purpose of' enabling the bucket to work easily and properly in shale and other For example, this Y When the buckets -move The links C consoil or substance of similar character, a gang of disks D is disposed between the two buckets. These disks are similar to those employed on disk cultivators or disk plows, being convex on one side and concave on the other side, and mounted to rot-ate about a rod or arbor CZ extending axially through all of them. rlhe disks can be of any suitable number, are spaced apart in yany suitable or desired manner, and are held in place on the said rod or arbor by any suitable or desired means. The ends ofthe said rod or arbor Z are connected with the back of the bucket by links or draft connections cZ, and the similar links (Z2 are provided at their upper and rear ends with track wheels Z3 that travel in the tracks or grooves of the runway. it will be observed that the links cZ, (Z2 and C have a common axis Zt on the back of the bucket. rlhe ends of the rod or arbor Z are connected with the upper ends of the links Z2 by means of vertical links or braces (Z5, which latter have bolt holes (ZG, whereby the gang of disks can be raised and lowered to vary the depth of cut thereof. Furthermore, the strain will, with this arrangement, be very largely upon the bolts inserted in the holes c6, and through holes in the links CZZ, and if the shale or other ground becomes too hard the pressure will cause a shearing of these bolts, thus preventing breakage of the other parts. Preferably, the gang of disks is so arranged that the outermost disk Z7 in the direction of their concavity, is slight-ly outside of the runway, as shown more clearly in Fig. 3, whereby this end disk will operate on the transverse surface or face of the excavation, and whereby. there will always be clearance between this surface and the side of the runway. As the buckets travel in one direction, 'the bucket ahead will gather up the dirt previously disintegrated or loosened by the gang of disks; at the same time, the surface of the ground in rear of this bucket will be raked and disintegrated to prepare it for the return movement yof the buckets. Zhen the motion of vthe buckets is reversed, the bucket which was previously moving backward will move now forward and gather up the dirt which was pulverized or disintegrated during the first-mentioned forward movement of the buckets in the other direction. rlhus each bucket ultimately gathers or collects the dirt which was disintegrated or loosened while it was traveling backward, and while the other bucket was gathering the dirt previously disintegrated or loosened in the same manner. As the concave surface of each disk is in the direction of the vertical end surface or face of the excavation, it follows that the endwise thrust of the gang of disks, which results from the tendency of each disk to move sidewise, is taken advantage of to keep the end disk tight up against the said surface or face of the excavation. In this way the excavating devices tend to hug or bear hard against the end surface or face of the excavation, with the result that the excavating operation is carried on in a satisfactory and proper manner. Moreover, there is always clearance between the side of the bucket and the face or surface of the excavation at the end or breast of the ditch,

and also between this surface or face and the side of the runway. Being disposed across the path of the buckets, the gang of disks will disintegrate or break up the soil by a vertical cutting operation, each disk being in the nature of a vertical cutting device, and the sharp edges of the disk will cut through and disrupt many substances that would practically stop the bucket, or at least subject it to the danger of breakage if it had to primarily break up and disintegrate theY ground preliminary to gathering a load. `With my improved arrangement much of the wear and tear is eliminated, and each bucket while loading finds the ground in such condition that the loading is made easy and certain.

It is obvious that various changes and modifications can be made without departing from the spirit of my invention. lt is also obvious that my invention is adapted for use on excavators of different kinds. For these reasons, therefore, l do not limit myself to the particular construction shown and described, nor to the useof my invention on any particular excavator.

`What l claim as my invention is:

l. ln an excavator, a back and forth operating bucket, means for disintegrating the ground, and mechanism for operating the bucket to gatherthe dirt loosened by said means, said means comprising a gang of cutting disks having a common axis disposed behind and across the path of travel of said bucket, and means for holding the gang in working position, whereby said disks are maintained at a cutting depth below the said bucket, said bucket having an independent and separate connection with said last mentioned means.

2. In an excavator, a back and forth operating bucket, means for breaking up or disintegrating the ground, and mechanism for operating the bucket to gather the dirt loosened by said means, said means comprisinga plurality of cutting disks arranged together in a gang, disposed behind said bucket, and means for holding the gang in working position, whereby said disks aremaintained at a cutting depth belowthe said bucket, said bucket having an independent and separate connection with said last mentioned means.

3. ln an excavator, a bucket, means for disintegrating the ground, mechanism for operating the bucket to gather the ydirt loosened by said means, said means comprisisc ing a gang of rotary cutting disks extending across the path of travel of the said bucket, and a runway for holding said gang to its work, whereby said disks are maintained at a cutting depth below the said bucket, said gang being pi'voted on said bucket, together with means for varying theV distance between said runway and disintegrating means to regulate 'the cutting depth of the latter, said bucket having independent and. separate connection with said runway.

it. In an excavator, a back and forth operating bucket, means for dis'integrating the ground, and mechanism for operating the bucket to gather the dirt loosened by said means, said means having. a plurality of devices arranged together in a gang to rake the surface of the ground to be traveled over by said bucket, disposed behind said bucket, operating with the same degree of efficiency when the bucket moves either' backward or forward, and means whereby said bucket and devices are held to their work independently of each other.

In an excavator, a bucket, meansfor disintegratin the ground, mechanism for operating the bucket to gather the dirt loosened by said means, said means being disposed behind the bucket, and a runway upon which the bucket is movable back and forth, whereby the ground is disintegrated in rear of the bucket whileV the latter is collecting the dirt loosened by 'the previous backward motion thereof, together' with means for varying the distance between said runway and disintegrating means to regulate the cutting depth of the latter.y

(hln an excavator, a bucket, means for disintegrating the ground, mechanism for operating' the bucket to gather the dirt loosened by said means, said means comprising a gang of cutting disks disposed behindthe bucket, and a runway on which the bucket is movable back and forth, whereby said disks cut the ground behind the bucket while the latter is collecting the dirt loosened by the pre- `ious backward motion thereof, together with means for varying the distance between said runway and disintegrating means to regulate the cutting depth of the latter.

l7. Inan excavator, a bucket, means for disinteoratino' the Oround mechanism for b b C 3 operating the bucket to gather the dirt locsened by said means, said means comprising a gang of vertically cutting devices disposed behind the bucket, and aV runway for holding Vthe bucket to its work, upon which the bucket is movable back and forth, whereby the ground is raked behind the bucket while the latter is collecting the dirt loosened by the previous backward motion thereof, together with means for varying the distance between said runway and i disintegrating means to regulate the cutting depth of the latter.

dirt loosened by said means, said means having a draft connection with the rear end of said bucket, and provisions independent of said means for pulling the bucket backward.

9. ln an excavator, a bucket, means for disintegrating the ground, mechanism for operating the bucket to gather the dirt loosened by said means, said means having a draft connection with the rear end of said bucket, and a runwayfor holding the bucket vand said means to thevground, upon which the same are movable back and forth, and provisions independent of said means for pulling the bucket backward, together with means for varying the distance between said runway and disintegrating means-to regulate the cutting depth of the latter.

10. In an excavator', a bucket, means for disintegrating the ground, mechanism for operating the bucket to gather the dirt loosened by said means, another bucket, the two buckets beingarranged back to back, a runway upOnwhich said buckets are movable back and forth, and a connection between the rear ends of said buckets, said means being disposed between the two buckets, and being operative by movement of said buckets, in either direction, whereby each bucket fills while the ground in rear thereof is being prepared' for the other bucket, `together with means for varying the distance between said runway and disinte- Y the two buckets being arranged back Vto back, a runway upon which said buckets are movable back and forth, a connection between the rear ends of said buckets, said means comprising a gang of disks extending across the path of travel of said buckets, disposed between said buckets, and being operative by movement of said buckets in either direction, whereby each bucket fills while the groundV in rear thereof is being prepared for the other bucket, one of said disks being disposed inv position to trim the vertical face of the excavation, together with means for varying `the distance between said runway and disintegrating means to regulate the cutting depth of the latter.

12. In an excavator, a bucket, means for disintegrating the ground, mechanism for operatingV the bucket to gatherV thedirt loosened by said means, another bucket, the two buckets being arranged back to back, a runway upon which said buckets are movlll() llt CII

able back and forth, and a connection between the rear ends of said buckets, said means comprising a olf vertically cutting devices extending in a row across the path or the said buckets, disposed between said buckets, and wheels traveling on said runway, between said buckets, connected with said devices, together' `with means for varying the distance between said runway and disintegrating means to regulate the cutting depth or the latter.

13. ln an excavator, apparatus for forming an excavation, comprising a bucket, means for disintegrating the ground, and mechanism for operating the bucket to gather the dirt loosened by said means, said means comprising a gang of cutting disks having a common axis disposed across the path of travel oi said bucket, said disks being provided with convex sides all facing in the same direction and away from the v-rtical face oi the excavation, when the excavator in operation, to maintain a side thrust on sait gang in the opposite direction.

let. ln an excavator, appara-tus tor forming an excavation, comprising a bucket, means for disintegrating the ground, and mechanism for operating the bucket to gather the dirt loosened by said means, said means comprising a plurality of cutting disks arranged together in a group, said disks being provided with convex sides all `lacing away from the vertical face of the excavation, when the excavator' is in use, to keep the said means from pulling' away from said face of the excavation.

l5. ln an excavator, apparatus for forming an excavation, comprising a bucket, means for disintegrating the ground, and mechanism for operating the bucket to gather the dirt loosened by said means, said means comprising a gang oi? rotary cutting disks extending across the path of travel of the said bucket, and a runway for holding said gang to its work, said disks being provided with convex sides all facing in a direction away from the vertical face ot the excavation, when in use, to prevent side thrust on said runway in this direction, together with means `for varying the distance between said runway and disintegrating means to regulate the cutting depth of the latter.

16. n an excavator, apparatus for forming an excavation, comprising a bucket, means for disintegrating the ground, mechanism for operating the bucket to gather the dirt loosened by said means, said means comprising a gang of cutting disks disposed behind the bucket, and a runway on which the bucket is movable back and forth, whereby said disks cut the ground behind the bucket while the latter is collecting the dirt loosened by the previous backward motion thereof,

said disks being provided with convex sides all facing in a direction away from the vcrtical tace of the excavation, when in use, to prevent side thrust on said runway in this direction toOcther with means for var in(r 7 D b the distance between said runway and disintegrating means to regulate the cutting depth of the latter.

17. ln an excavator, apparatus for forming an excavation, comprising a bucket, means for disinterating the ground, and mechanism for operating the bucket to gather the dirt loosened by said means, 'said means comprising a gang of cutting disks having a common axis disposed across the path of travel of said bucket, one oi2 said disks being disposed in position to bear against the vertical face ot the excavation.

18. lin an excavator, apparatus for forining an excavation, comprising a bucket, means for disintegrating the ground, and mechanism for operating the bucket to gather the dirt loosened by said means, said means comprising a plurality of cutting disks arranged together in a group, one of said disks being disposed in position to `bear against the vertical face of the excavation.

19. ln an excavator, apparatus for forining an excavation, comprising a bucket, means for disintegrating the ground, mechanism for operating the bucket to gather the dirt loosened by said means, said means comprising a gang of rotary cutting disks extending across the path of travel of the said bucket, and a runway forv holding said gang to its work, one ot' said disks being disposed in position to bear against the vertical face of the excavation, said runway being spaced a distance back from said face of the excavation, together with means for varying the distance between said runway and disintegrating means to regulate the cutting depth of the latter.

20. in an excavator, apparatus for form ing an excavation, comprising a bucket, means for disintegrating the ground, mechanism for operating the bucket to gather the dirt loosened by said means, said means comprising a gang of cutting disks disposed behind the bucket, and a runway on which the bucket and disks are movable back and forth, disposed transversely ot' the horizontal direction of progress of the excavation, whereby said disks cut the ground behind the bucket while the latter is collecting the dirt loosened by the previous backward motion thereof, one of said disks being disposed in position to trim and form the vertical face of the excavation a distance from the formed side of said runway, together' with means for varying the distance between said runway and disintegrating means to regulate the cutting depth of the latter.

2l. ln an excavator, apparatus for forming an excavation, comprising a bucket,

means for disintegrating the ground, mechanism for operating the bucket to gather the dirt loosened by said means, said means comprising a gang of cutting disks having a common axis disposed across the path of travel of said bucket, each disk being concave on one side and convex on the other side, the disks all having their concave sides facing toward the end wall of the excavation, and one of said disks being disposed in position to bear with its concave surface against the face of said end wall.

22. In an excavator, apparatus for forming an excavation, comprising a bucket, means for disintegrating the ground, mechanisin for operating the bucket to gather the dirt loosened by said means, said means comprising `a plurality of cutting disks arranged together in a group, each disk being concave on one side and convex on the other side, the disks all having their concave sides facing toward the end wall of the excavation, and one of said disks being disposed in position to bear with its concave surface against the face of said end wall.

28. In an excavator, apparatus for forming an excavation, comprising a bucket, means for disintegrating the ground, mechanism for operating the bucket to gather the dirt loosened by said means, said means comprising a gang of rotary cutting disks extending across the path of travel of the said bucket, and a runway having wheels traveling thereon for holding said gang to its work, each disk being concave on one side and convex on the other side, the disks all having their` concave sides facing toward the end wall of the excavation, and one of said disks being disposed in position to bear with its concave surface against the face of said end wall outside of said runway, together with means for varying the distance between said runway and disintegrating means to regulate the cutting depth of the latter.

24. In an excavator, apparatus for forming an excavation, comprising a bucket, means for disintegrating the ground, mechanism for `operating the bucket to gather the dirt loosened by said means, said means comprising a gang of cutting disks disposed behind the bucket, and a runway on which the bucket is movable back and forth, whereby said disks cut the ground behind the bucket while the latter is collecting the dirt loosened by the previous backward motion thereof, each disk being concave on one side and convex on the Vother side, the disks all having their concave sides facing toward the end wall of the excavation, and one of said disks being disposed in position to bear with its concave surface against the face of said end wall outside of saidv runway, together with means for varyingV the distance beltween said runway and disintegrating means to regulatetlie cuttingdepth of the latter.

25. An excavator comprising a pair of buckets arranged backV to back, mechanism for operating said buckets back and forth, and means between said buckets for loosening the ground, operative in both directions of travel thereof, whereby eachv bucket is adapted to load while the said means are preparing the groundjfor the return travel of the other bucket, and members whereby said buckets and means are guided independently of each other over a definite path of travel.

26. An excavator comprising a pair of buckets arranged back to back, mechanism for operating said buckets back and forth, means between said buckets for loosening the ground, operative in both directions of travel thereof, said means including a gang of cutting devices, a pivotal connection between said gang and'one of said buckets l' wheels forsaid gang, a runway for said wheels, and an adgustable connection between said wheels and gang, movable about vrunwa for said wheels said an' comprising a plurality of disks disposed in rear of said bucket.

signed by me at chicago', illinois', this o.

25th day of November,`l9l1.

CHARLES C. JACOBS. TWitnesses:

E. H. CLEGG, GEO. F. SCHMIDT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner ofPatents,

Washington, D. C.

It is hereby certified that in Letters Patent N o. 1,156,291, granted October 12,

1915, upon the application of Charles C. Jacobs, of Amboy, Illinois, an error appears requiring correction as follows: In the grant, in the printed specification, and in the headings of the drawings the title of the invention Was erroneously given as Disintegrator Attachments for Elevator-Buckets, Whereas said title should have been given as Distntegrator Attachments for Eacaoato?n Buckets; and that the said Letters Patent should be read With this correction therein that the same may conform to the record of the case in the Patent Olioe.

Signed and sealed this 7th day of December, A. D., 1915.

[SEAL] R. F. WHITEHEAD,

Cl. 37-39. Acting Commissioner of Patents. 

